/* roulang page: index */
:root{
  --bg:#08161C;
  --bg-2:#0D222B;
  --bg-3:#061117;
  --glass:rgba(255,255,255,.06);
  --glass-strong:rgba(255,255,255,.09);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --brand:#17BFA8;
  --brand-d:#0E8C7C;
  --brand-l:#5FE3D0;
  --amber:#F2A93B;
  --text:#E8F2F2;
  --muted:#8FA9AF;
  --radius:16px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow:0 8px 28px rgba(0,0,0,.38);
  --shadow-lg:0 18px 48px rgba(0,0,0,.48);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:12px}
a{color:var(--brand-l);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--brand)}
button,input,select,textarea{font-family:inherit;font-size:15px;color:var(--text)}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.01em}
p{margin:0 0 18px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--deep{background:var(--bg-3)}
.section--panel{background:var(--bg-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--brand-l);font-weight:600;margin-bottom:14px
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:clamp(22px,3vw,34px)}
.section-head p{color:var(--muted);font-size:15px;margin-top:14px}
.grid-x{margin-left:-12px;margin-right:-12px}
.grid-x>.cell{padding-left:12px;padding-right:12px}
.gap-row{margin-bottom:24px}

/* ---------- header ---------- */
.topbar{background:var(--bg-3);border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
.topbar .container{display:flex;align-items:center;justify-content:space-between;height:38px;gap:16px}
.topbar-left{display:flex;align-items:center;gap:12px;white-space:nowrap;overflow:hidden}
.topbar-domain{color:var(--text);font-weight:600;letter-spacing:.04em}
.topbar-sep{width:1px;height:12px;background:var(--line-strong)}
.topbar-right{display:flex;align-items:center;gap:20px;white-space:nowrap}
.topbar-right a{color:var(--muted);display:inline-flex;align-items:center;gap:6px}
.topbar-right a:hover{color:var(--brand-l)}
.site-header{position:sticky;top:0;z-index:60;background:rgba(8,22,28,.72);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line);transition:background .3s ease,box-shadow .3s ease}
.site-header.is-scrolled{background:rgba(8,22,28,.92);box-shadow:0 10px 30px rgba(0,0,0,.42)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);font-weight:700;font-size:18px;letter-spacing:.02em}
.brand:hover{color:var(--text)}
.brand-mark{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#04201C;font-size:18px;box-shadow:inset 0 0 0 1px rgba(95,227,208,.35),0 8px 20px rgba(23,191,168,.28)}
.brand small{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.14em}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-link{position:relative;display:inline-flex;align-items:center;height:72px;padding:0 16px;color:var(--muted);font-size:15px;font-weight:500}
.nav-link::after{content:"";position:absolute;left:16px;right:16px;bottom:18px;height:2px;background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .25s ease}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-l);font-weight:600}
.nav-cta{display:flex;align-items:center;gap:14px}
.hamburger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);background:var(--glass);color:var(--text);cursor:pointer}
.hamburger i{font-size:17px}
.drawer-mask{position:fixed;inset:0;background:rgba(0,0,0,.6);opacity:0;visibility:hidden;transition:.3s;z-index:80}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;background:var(--bg-2);border-left:1px solid var(--line);z-index:90;transform:translateX(102%);transition:transform .32s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column;padding:24px}
.drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line-strong);background:transparent;color:var(--text);cursor:pointer}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{padding:14px 12px;border-radius:12px;color:var(--text);font-size:16px;border:1px solid transparent}
.drawer-nav a:hover,.drawer-nav a.is-active{background:var(--glass);border-color:var(--line-strong);color:var(--brand-l)}
.drawer-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border:0;border-radius:var(--radius-btn);font-size:15px;font-weight:600;cursor:pointer;transition:transform .2s ease,box-shadow .25s ease,filter .2s ease,background .25s ease,color .2s ease;text-decoration:none}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#04201C;box-shadow:inset 0 0 0 1px rgba(95,227,208,.35),0 8px 24px rgba(23,191,168,.32)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);color:#04201C;box-shadow:inset 0 0 0 1px rgba(95,227,208,.5),0 12px 30px rgba(23,191,168,.42)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--brand-l);border:1px solid rgba(23,191,168,.45)}
.btn-ghost:hover{background:rgba(23,191,168,.08);color:var(--brand-l);transform:translateY(-2px)}
.btn-amber{background:linear-gradient(135deg,#F7BE63,var(--amber));color:#2A1804;box-shadow:0 8px 24px rgba(242,169,59,.28)}
.btn-amber:hover{filter:brightness(1.06);color:#2A1804;transform:translateY(-2px)}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--brand-l);outline-offset:2px}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.04em}
.badge-brand{color:var(--brand-l);border:1px solid rgba(23,191,168,.45);background:rgba(23,191,168,.08)}
.badge-amber{color:#FFD79A;border:1px solid rgba(242,169,59,.5);background:rgba(242,169,59,.12)}
.badge-muted{color:var(--muted);border:1px solid var(--line-strong);background:var(--glass)}

/* ---------- glass card ---------- */
.card{background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.10);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);padding:28px;transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease}
.card:hover{transform:translateY(-4px);border-color:rgba(23,191,168,.4);box-shadow:var(--shadow-lg),inset 0 1px 0 rgba(255,255,255,.14)}
.card h3{font-size:18px;margin-bottom:10px}
.card p{color:var(--muted);font-size:14px}
.card-flat{padding:22px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:92px 0 84px;background-image:url("/assets/images/backpic/back-1.webp");background-size:cover;background-position:center;border-bottom:1px solid var(--line)}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(6,17,23,.94) 0%,rgba(8,22,28,.86) 46%,rgba(6,17,23,.66) 100%)}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:64px 64px;opacity:.5;pointer-events:none}
.hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.25fr .85fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(28px,4vw,44px);margin:16px 0 18px}
.hero h1 em{font-style:normal;color:var(--brand-l)}
.hero-sub{font-size:17px;color:#BFD5D6;max-width:560px;margin-bottom:24px}
.hero-points{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px}
.hero-point{display:inline-flex;align-items:center;gap:9px;padding:9px 15px;border-radius:999px;background:var(--glass);border:1px solid var(--line);font-size:13px;color:#CFE3E3}
.hero-point i{color:var(--brand)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-card{background:rgba(13,34,43,.78);border:1px solid var(--line-strong);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-lg),inset 0 1px 0 rgba(255,255,255,.12);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.hero-card h3{font-size:19px;margin:14px 0 6px}
.hero-card .price{font-size:34px;font-weight:700;color:var(--brand-l);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-card .price span{font-size:14px;color:var(--muted);font-weight:500;margin-left:6px}
.hero-list{margin:18px 0 22px;display:grid;gap:10px}
.hero-list li{display:flex;gap:10px;font-size:14px;color:#C6DBDB}
.hero-list i{color:var(--brand);margin-top:6px;font-size:12px}
.countdown{display:flex;align-items:center;gap:8px;margin:16px 0 20px}
.countdown .num{min-width:46px;padding:8px 6px;text-align:center;border-radius:8px;background:rgba(0,0,0,.35);border:1px solid var(--line-strong);font-variant-numeric:tabular-nums;font-weight:700;font-size:18px;color:var(--amber)}
.countdown .colon{color:var(--muted);font-weight:700}

/* ---------- steps ---------- */
.steps-wrap{display:grid;grid-template-columns:2fr 1fr;gap:32px;align-items:stretch}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);background:var(--glass);overflow:hidden}
.step{padding:30px 24px;position:relative}
.step+.step{border-left:1px solid var(--line)}
.step-num{font-size:26px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:.04em}
.step h3{font-size:17px;margin:14px 0 8px}
.step p{font-size:13.5px;color:var(--muted);margin:0}
.side-card{display:flex;flex-direction:column;justify-content:space-between}

/* ---------- ladder ---------- */
.ladder{display:grid;gap:18px}
.rung{display:flex;align-items:center;gap:24px;padding:24px 28px;border-radius:var(--radius);background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow);position:relative;transition:transform .28s ease,border-color .28s ease}
.rung:hover{transform:translateX(6px);border-color:rgba(23,191,168,.4)}
.rung-num{flex:0 0 56px;height:56px;border-radius:14px;display:grid;place-items:center;font-weight:700;font-size:18px;color:var(--brand-l);border:1px solid rgba(23,191,168,.35);background:rgba(23,191,168,.07);font-variant-numeric:tabular-nums}
.rung-body{flex:1 1 auto}
.rung-body h3{font-size:17px;margin-bottom:6px}
.rung-body p{font-size:14px;color:var(--muted);margin:0}
.rung-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.rung-side{flex:0 0 auto;display:flex;flex-direction:column;align-items:flex-end;gap:10px}
.rung--top{border-color:rgba(242,169,59,.5);box-shadow:0 8px 28px rgba(242,169,59,.14),inset 0 1px 0 rgba(255,255,255,.10)}
.rung--top .rung-num{color:#FFD79A;border-color:rgba(242,169,59,.5);background:rgba(242,169,59,.12)}

/* ---------- compare ---------- */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.plan{display:flex;flex-direction:column;padding:32px 28px;border-radius:var(--radius);background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow);position:relative;transition:transform .28s ease,border-color .28s ease}
.plan:hover{border-color:rgba(23,191,168,.4)}
.plan--featured{transform:scale(1.04);border-color:rgba(23,191,168,.55);box-shadow:0 20px 48px rgba(23,191,168,.18),inset 0 1px 0 rgba(255,255,255,.14);z-index:2}
.plan--featured:hover{transform:scale(1.04) translateY(-4px)}
.plan-tag{position:absolute;top:-13px;left:28px}
.plan h3{font-size:20px}
.plan .plan-desc{font-size:13.5px;color:var(--muted);margin:10px 0 18px}
.plan .plan-price{font-size:32px;font-weight:700;color:var(--brand-l);font-variant-numeric:tabular-nums;line-height:1.2}
.plan .plan-price small{font-size:14px;color:var(--muted);font-weight:500;margin-left:4px}
.plan ul{margin:22px 0 26px;display:grid;gap:11px}
.plan ul li{display:flex;gap:10px;font-size:14px;color:#C6DBDB}
.plan ul li i{color:var(--brand);font-size:12px;margin-top:6px}
.plan .btn{margin-top:auto}

/* ---------- banner ---------- */
.banner{background:linear-gradient(100deg,rgba(242,169,59,.16),rgba(23,191,168,.14));border:1px solid var(--line-strong);border-radius:var(--radius);padding:26px 32px;display:flex;align-items:center;justify-content:space-between;gap:24px;position:relative;overflow:hidden}
.banner::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:28px 28px;pointer-events:none}
.banner-text{position:relative;z-index:2}
.banner-text strong{display:block;font-size:19px;margin-bottom:6px}
.banner-text p{margin:0;font-size:14px;color:#C6DBDB}
.banner-side{position:relative;z-index:2;display:flex;align-items:center;gap:20px}
.banner .countdown{margin:0}

/* ---------- news ---------- */
.filter-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.tag{padding:8px 16px;border-radius:999px;border:1px solid var(--line-strong);background:var(--glass);color:var(--muted);font-size:13px;transition:.22s}
.tag:hover{color:var(--brand-l);border-color:rgba(23,191,168,.5)}
.tag.is-on{background:rgba(23,191,168,.12);border-color:rgba(23,191,168,.5);color:var(--brand-l);font-weight:600}
.news-list{display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:24px}
.news-card{display:flex;flex-direction:column;background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .28s ease,border-color .28s ease}
.news-card:hover{transform:translateY(-4px);border-color:rgba(23,191,168,.4)}
.news-card--lead{grid-row:span 2}
.news-thumb{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--bg-3)}
.news-card--lead .news-thumb{aspect-ratio:4/3}
.news-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s ease}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12.5px;color:var(--muted);margin-bottom:12px}
.news-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line-strong)}
.news-card h3{font-size:17px;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card h3 a{color:var(--text)}
.news-card h3 a:hover{color:var(--brand-l)}
.news-card p{font-size:13.5px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px}
.news-more{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--brand-l)}
.empty-state{border:1px dashed var(--line-strong);border-radius:var(--radius);background:rgba(255,255,255,.03);padding:48px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px}
.empty-state i{font-size:40px;color:rgba(23,191,168,.6)}
.empty-state p{color:var(--muted);font-size:14px;margin:0}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat{padding:34px 24px;text-align:center;position:relative}
.stat+.stat::before{content:"";position:absolute;left:0;top:22%;height:56%;width:1px;background:var(--line)}
.stat b{display:block;font-size:32px;font-weight:700;color:var(--brand-l);font-variant-numeric:tabular-nums;line-height:1.2}
.stat span{display:block;font-size:13.5px;color:var(--muted);margin-top:8px}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;background:none;border:0;padding:22px 4px;display:flex;align-items:center;justify-content:space-between;gap:20px;text-align:left;font-size:17px;font-weight:600;color:var(--text);cursor:pointer;transition:color .22s}
.faq-q:hover{color:var(--brand-l)}
.faq-q .plus{flex:0 0 auto;color:var(--muted);transition:transform .3s ease,color .3s ease}
.faq-item.is-open .faq-q{color:var(--brand-l)}
.faq-item.is-open .plus{transform:rotate(45deg);color:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .36s ease}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{padding:0 4px 24px;color:var(--muted);font-size:14.5px;max-width:900px}

/* ---------- form ---------- */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:start}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;color:#BFD5D6;margin-bottom:8px;font-weight:500}
.field .req{color:var(--amber);margin-left:4px}
.field input,.field select,.field textarea{width:100%;padding:13px 14px;border-radius:var(--radius-input);background:rgba(255,255,255,.04);border:1px solid var(--line-strong);color:var(--text);transition:border-color .22s,box-shadow .22s,background .22s}
.field textarea{min-height:118px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#6E888E}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,191,168,.18);background:rgba(255,255,255,.06)}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.checkline{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--muted);margin-bottom:22px}
.checkline input{width:18px;height:18px;margin-top:5px;accent-color:var(--brand)}
.form-note{font-size:12.5px;color:var(--muted);margin-top:14px}
.info-card{display:grid;gap:16px}
.info-row{display:flex;gap:14px;padding:16px 18px;border-radius:12px;background:rgba(255,255,255,.035);border:1px solid var(--line)}
.info-row i{color:var(--brand);font-size:16px;margin-top:5px}
.info-row b{display:block;font-size:13px;color:var(--muted);font-weight:500;margin-bottom:3px}
.info-row span{font-size:15px;color:var(--text)}
.map-box{margin-top:6px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);position:relative}
.map-box img{border-radius:0;width:100%;aspect-ratio:16/9;object-fit:cover}
.map-box figcaption{position:absolute;left:14px;bottom:12px;font-size:12.5px;color:#DCEAEA;background:rgba(6,17,23,.7);border:1px solid var(--line-strong);border-radius:999px;padding:5px 12px}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-3);border-top:1px solid var(--line);padding:64px 0 0;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand p{font-size:13.5px;color:var(--muted);margin-top:16px;max-width:330px}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text)}
.footer-col a,.footer-col li{display:block;font-size:13.5px;color:var(--muted);margin-bottom:11px}
.footer-col a:hover{color:var(--brand-l)}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0 28px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;font-size:12.5px;color:var(--muted)}
.to-top{position:fixed;right:24px;bottom:26px;width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:rgba(13,34,43,.85);border:1px solid var(--line-strong);color:var(--brand-l);cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);transition:.28s;z-index:70;backdrop-filter:blur(12px)}
.to-top.is-on{opacity:1;visibility:visible;transform:translateY(0)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 20px}
  .section{padding:64px 0}
  .hero{padding:68px 0 60px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .steps-wrap{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step:nth-child(3){border-left:0;border-top:1px solid var(--line)}
  .step:nth-child(4){border-top:1px solid var(--line)}
  .news-list{grid-template-columns:1fr 1fr}
  .news-card--lead{grid-column:span 2;grid-row:auto}
  .plans{grid-template-columns:1fr;gap:32px}
  .plan--featured{transform:scale(1)}
  .plan--featured:hover{transform:translateY(-4px)}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .nav-links,.nav-cta .btn{display:none}
  .hamburger{display:grid;place-items:center}
}
@media (max-width:640px){
  body{font-size:15px}
  .section{padding:52px 0}
  .hero{padding:52px 0 48px}
  .hero h1{font-size:clamp(26px,7vw,32px)}
  .steps{grid-template-columns:1fr}
  .step+.step{border-left:0;border-top:1px solid var(--line)}
  .rung{flex-direction:column;align-items:flex-start;gap:16px}
  .rung-side{align-items:flex-start;width:100%}
  .news-list{grid-template-columns:1fr}
  .news-card--lead{grid-column:auto}
  .stats{grid-template-columns:1fr 1fr}
  .stat:nth-child(3)::before,.stat:nth-child(odd)::before{display:none}
  .stat:nth-child(3),.stat:nth-child(4){border-top:1px solid var(--line)}
  .banner{flex-direction:column;align-items:flex-start;padding:24px 20px}
  .banner-side{flex-direction:column;align-items:flex-start;width:100%}
  .footer-grid{grid-template-columns:1fr}
  .topbar-right a span{display:none}
  .card{padding:22px}
  .plan{padding:26px 20px}
}

/* roulang page: article */
/* ================= 设计变量 ================= */
:root{
  --bg:#08161C;
  --bg-soft:#0D222B;
  --bg-deep:#061117;
  --glass:rgba(255,255,255,.06);
  --glass-strong:rgba(255,255,255,.09);
  --glass-border:rgba(255,255,255,.12);
  --primary:#17BFA8;
  --primary-dark:#0E8C7C;
  --primary-light:#5FE3D0;
  --amber:#F2A93B;
  --text:#E8F2F2;
  --text-dim:#8FA9AF;
  --line:rgba(255,255,255,.10);
  --r-card:16px;
  --r-btn:12px;
  --r-input:10px;
  --shadow:0 8px 28px rgba(0,0,0,.38);
  --shadow-lift:0 16px 44px rgba(0,0,0,.5);
  --maxw:1200px;
}

/* ================= 基础 reset ================= */
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  font-weight:400;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--primary-light);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.3;letter-spacing:.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}

/* Foundation 覆盖 */
body,html{background-color:var(--bg);}
.accordion{background:transparent;border:none;margin:0;}
.accordion-title{border:none;}
.button{font-family:inherit;}

/* ================= 容器 ================= */
.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 20px;
}

/* ================= 顶部信息条 ================= */
.topbar{
  background:var(--bg-deep);
  border-bottom:1px solid var(--line);
  font-size:13px;
  color:var(--text-dim);
}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:38px;
  gap:16px;
}
.topbar-left{display:flex;align-items:center;gap:12px;min-width:0;}
.topbar-domain{
  color:var(--primary-light);
  font-weight:600;
  letter-spacing:.04em;
  font-variant-numeric:tabular-nums;
}
.topbar-divider{width:1px;height:14px;background:var(--line);display:inline-block;}
.topbar-note{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-right{display:flex;align-items:center;gap:18px;white-space:nowrap;}
.topbar-link{display:inline-flex;align-items:center;gap:6px;color:var(--text-dim);}
.topbar-link:hover{color:var(--primary-light);}
.topbar-link i{color:var(--primary);font-size:12px;}

/* ================= 主导航 ================= */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(8,22,28,.72);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
  transition:background-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(8,22,28,.94);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  font-size:18px;
  font-weight:700;
  color:var(--text);
  flex-shrink:0;
}
.brand:hover{color:var(--text);}
.brand-mark{
  width:38px;height:38px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  color:#04211D;
  background:linear-gradient(135deg,var(--primary-light),var(--primary));
  box-shadow:0 0 0 1px rgba(95,227,208,.35) inset,0 6px 18px rgba(23,191,168,.32);
  font-size:16px;
}
.brand small{
  display:block;
  font-size:12px;
  font-weight:400;
  color:var(--text-dim);
  letter-spacing:.06em;
  margin-top:2px;
}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;
  padding:10px 14px;
  font-size:15px;
  color:var(--text-dim);
  border-radius:10px;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--primary-light);}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .25s ease,background-color .25s ease,color .2s ease,border-color .25s ease;
  white-space:nowrap;
}
.btn-primary{
  color:#04211D;
  background:linear-gradient(135deg,var(--primary-light),var(--primary-dark));
  box-shadow:0 0 0 1px rgba(95,227,208,.35) inset,0 8px 24px rgba(23,191,168,.32);
}
.btn-primary:hover{
  color:#04211D;
  transform:translateY(-2px);
  filter:brightness(1.08);
  box-shadow:0 0 0 1px rgba(95,227,208,.5) inset,0 12px 30px rgba(23,191,168,.45);
}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  color:var(--primary-light);
  border-color:rgba(23,191,168,.45);
  background:transparent;
}
.btn-ghost:hover{
  color:var(--primary-light);
  background:rgba(23,191,168,.12);
  border-color:var(--primary);
}
.btn-amber{
  color:#2A1704;
  background:linear-gradient(135deg,#FFC46B,var(--amber));
  box-shadow:0 8px 24px rgba(242,169,59,.28);
}
.btn-amber:hover{color:#2A1704;transform:translateY(-2px);filter:brightness(1.05);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}

/* ================= 徽章 / 标签 ================= */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:24px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  line-height:1;
  letter-spacing:.03em;
  border:1px solid rgba(23,191,168,.5);
  color:var(--primary-light);
  background:rgba(23,191,168,.10);
}
.badge-amber{
  border-color:rgba(242,169,59,.55);
  color:var(--amber);
  background:rgba(242,169,59,.12);
}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  color:var(--text-dim);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
}
.tag:hover{color:var(--primary-light);border-color:rgba(23,191,168,.5);background:rgba(23,191,168,.1);}

/* ================= 玻璃卡 ================= */
.glass{
  background:var(--glass);
  border:1px solid var(--glass-border);
  border-radius:var(--r-card);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.10);
}

/* ================= 页面 Hero ================= */
.page-hero{
  position:relative;
  padding:56px 0 48px;
  background-color:var(--bg-deep);
  background-image:linear-gradient(180deg,rgba(6,17,23,.88),rgba(8,22,28,.95)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 85%);
}
.page-hero .container{position:relative;z-index:2;}

/* 面包屑 */
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--text-dim);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--text-dim);}
.breadcrumb a:hover{color:var(--primary-light);}
.breadcrumb .sep{color:rgba(255,255,255,.25);}
.breadcrumb .current{
  color:var(--text-dim);
  max-width:340px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.hero-badge-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:18px;}
.article-title{
  font-size:clamp(26px,3.4vw,40px);
  font-weight:700;
  line-height:1.35;
  max-width:900px;
  margin-bottom:18px;
}
.article-title em{
  font-style:normal;
  color:var(--primary-light);
}
.article-lead{
  max-width:760px;
  color:var(--text-dim);
  font-size:16px;
  line-height:1.85;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 18px;
  margin-top:24px;
  padding-top:20px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-dim);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--primary);font-size:12px;}
.article-meta .divider{width:1px;height:12px;background:var(--line);}

/* ================= 文章布局 ================= */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:44px;
  align-items:start;
  padding:56px 0 40px;
}
.article-shell{
  padding:36px 38px 32px;
}
.key-points{
  margin-bottom:32px;
  padding:22px 24px;
  border-radius:14px;
  background:rgba(23,191,168,.08);
  border:1px solid rgba(23,191,168,.28);
  border-left:3px solid var(--primary);
}
.key-points h2{
  font-size:16px;
  color:var(--primary-light);
  margin-bottom:12px;
  display:flex;
  align-items:center;
  gap:8px;
}
.key-points ul{display:grid;gap:9px;}
.key-points li{
  position:relative;
  padding-left:20px;
  font-size:14.5px;
  color:#CFE2E3;
  line-height:1.75;
}
.key-points li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 8px rgba(23,191,168,.7);
}

/* 正文排版 */
.article-body{
  max-width:820px;
  font-size:16px;
  line-height:1.85;
  color:#DCE9EA;
}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  position:relative;
  font-size:24px;
  color:var(--text);
  margin:42px 0 16px;
  padding-left:14px;
  border-left:3px solid var(--primary);
}
.article-body h3{
  font-size:19px;
  color:var(--primary-light);
  margin:30px 0 12px;
}
.article-body h4{
  font-size:17px;
  color:var(--text);
  margin:24px 0 10px;
}
.article-body p{margin:0 0 18px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:24px;}
.article-body ul li{list-style:disc;margin:8px 0;}
.article-body ol li{list-style:decimal;margin:8px 0;}
.article-body li::marker{color:var(--primary-light);}
.article-body strong{color:#FFFFFF;font-weight:600;}
.article-body a{color:var(--primary-light);text-decoration:underline;text-underline-offset:3px;}
.article-body img{
  border-radius:12px;
  margin:22px auto;
  box-shadow:var(--shadow);
}
.article-body figure{margin:22px 0;}
.article-body figcaption{
  text-align:center;
  font-size:13px;
  color:var(--text-dim);
  margin-top:10px;
}
.article-body blockquote{
  margin:24px 0;
  padding:16px 22px;
  background:var(--glass);
  border-left:3px solid var(--primary);
  border-radius:0 12px 12px 0;
  color:#C6D9DA;
  backdrop-filter:blur(10px);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{
  width:100%;
  border-collapse:collapse;
  font-size:14px;
  margin:22px 0;
  display:block;
  overflow-x:auto;
}
.article-body th,.article-body td{
  border:1px solid var(--line);
  padding:11px 14px;
  text-align:left;
  white-space:nowrap;
}
.article-body th{background:rgba(23,191,168,.10);color:var(--primary-light);font-weight:600;}
.article-body tbody tr:nth-child(odd){background:rgba(255,255,255,.03);}
.article-body pre{
  background:#051013;
  border:1px solid var(--line);
  border-radius:12px;
  padding:16px 18px;
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
  margin:20px 0;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
  font-size:14px;
  color:var(--primary-light);
}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0;}

/* 空态 */
.empty-state{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:16px;
  padding:64px 24px;
  border-radius:var(--r-card);
  background:rgba(255,255,255,.03);
  border:1px dashed var(--line);
  text-align:center;
}
.empty-state i{font-size:52px;color:rgba(143,169,175,.6);line-height:1;}
.empty-state p{font-size:15px;color:var(--text-dim);}

/* 文章底部操作 */
.article-foot{
  margin-top:36px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.foot-block{margin-bottom:26px;}
.foot-block h3{
  font-size:14px;
  color:var(--text-dim);
  font-weight:600;
  letter-spacing:.06em;
  margin-bottom:12px;
}
.share-row{display:flex;flex-wrap:wrap;gap:10px;}
.share-btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  font-size:13px;
  border-radius:999px;
  color:var(--text-dim);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
}
.share-btn:hover{color:var(--primary-light);border-color:rgba(23,191,168,.5);background:rgba(23,191,168,.1);}

.pager{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;
}
.pager a{
  display:block;
  padding:16px 18px;
  border-radius:14px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  transition:transform .2s ease,border-color .2s ease,background-color .2s ease;
}
.pager a:hover{transform:translateY(-3px);border-color:rgba(23,191,168,.5);background:rgba(23,191,168,.08);}
.pager small{display:block;font-size:12px;color:var(--text-dim);margin-bottom:6px;letter-spacing:.05em;}
.pager span{display:block;font-size:15px;color:var(--text);line-height:1.6;}
.pager .next{text-align:right;}

/* 相关推荐 */
.related{margin-top:34px;}
.related h3{
  font-size:18px;
  margin-bottom:18px;
  display:flex;
  align-items:center;
  gap:10px;
}
.related h3::before{
  content:"";
  width:4px;height:18px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--primary-light),var(--primary-dark));
}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;
}
.rel-card{
  display:block;
  border-radius:14px;
  overflow:hidden;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(23,191,168,.5);box-shadow:var(--shadow-lift);}
.rel-thumb{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--bg-soft);
}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.05);}
.rel-body{padding:14px 16px 18px;}
.rel-body h4{font-size:15px;line-height:1.55;margin-bottom:8px;color:var(--text);}
.rel-body p{font-size:13px;color:var(--text-dim);line-height:1.7;}

/* ================= 侧栏 ================= */
.article-side{
  position:sticky;
  top:96px;
  display:grid;
  gap:18px;
}
.side-card{
  padding:22px 22px 24px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--glass-border);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.10);
}
.side-card h3{
  font-size:15px;
  margin-bottom:16px;
  display:flex;
  align-items:center;
  gap:9px;
}
.side-card h3 i{color:var(--primary);font-size:14px;}
.side-nav{display:grid;gap:8px;}
.side-nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:12px 14px;
  font-size:14px;
  border-radius:12px;
  color:#D6E5E6;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
}
.side-nav a:hover{
  color:var(--primary-light);
  border-color:rgba(23,191,168,.5);
  background:rgba(23,191,168,.10);
  transform:translateX(3px);
}
.side-nav a i{font-size:12px;color:var(--primary);}
.side-list{display:grid;gap:12px;}
.side-list li{
  display:flex;
  gap:10px;
  font-size:13.5px;
  color:var(--text-dim);
  line-height:1.7;
}
.side-list li i{color:var(--primary);font-size:13px;margin-top:6px;}
.side-contact{
  display:grid;
  gap:10px;
  font-size:13.5px;
  color:var(--text-dim);
  margin-bottom:16px;
}
.side-contact span{display:flex;align-items:center;gap:9px;}
.side-contact i{color:var(--primary);width:14px;text-align:center;}
.side-price{
  font-size:26px;
  color:var(--amber);
  font-weight:700;
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.side-price small{font-size:13px;color:var(--text-dim);font-weight:400;}

/* ================= CTA 通栏 ================= */
.cta-band{
  margin:24px 0 0;
  padding:44px 0;
  background:linear-gradient(100deg,rgba(242,169,59,.12),rgba(23,191,168,.16));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
}
.cta-copy h2{font-size:24px;margin-bottom:8px;}
.cta-copy p{color:var(--text-dim);font-size:14.5px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ================= FAQ ================= */
.faq-section{padding:72px 0 0;}
.section-head{margin-bottom:28px;max-width:720px;}
.section-head .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--primary-light);
  letter-spacing:.08em;
  margin-bottom:12px;
}
.section-head h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:10px;}
.section-head p{color:var(--text-dim);font-size:14.5px;}
.faq-wrap{
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--glass-border);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.10);
  overflow:hidden;
}
.faq-wrap .accordion{border:none;}
.faq-wrap .accordion-item{border-bottom:1px solid var(--line);}
.faq-wrap .accordion-item:last-child{border-bottom:none;}
.faq-wrap .accordion-title{
  position:relative;
  padding:20px 56px 20px 24px;
  font-size:15.5px;
  font-weight:600;
  color:var(--text);
  background:transparent;
  transition:color .2s ease,background-color .2s ease;
}
.faq-wrap .accordion-title:hover{color:var(--primary-light);background:rgba(255,255,255,.03);}
.faq-wrap .accordion-title::before{
  content:"\f067";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  right:24px;top:50%;
  transform:translateY(-50%);
  font-size:13px;
  color:var(--primary);
  transition:transform .3s ease;
}
.faq-wrap .accordion-item.is-active .accordion-title{color:var(--primary-light);background:rgba(23,191,168,.06);}
.faq-wrap .accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(45deg);}
.faq-wrap .accordion-content{
  background:transparent;
  padding:0 24px;
  border:none;
}
.faq-wrap .accordion-content p{
  padding:0 0 22px;
  font-size:14.5px;
  color:var(--text-dim);
  line-height:1.85;
}

/* ================= 页脚 ================= */
.site-footer{
  margin-top:80px;
  background:var(--bg-deep);
  border-top:1px solid var(--line);
  padding:60px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:36px;
  border-bottom:1px solid var(--line);
}
.footer-brand .brand{margin-bottom:16px;font-size:17px;}
.footer-brand p{font-size:13.5px;color:var(--text-dim);line-height:1.85;max-width:360px;}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:16px;letter-spacing:.04em;}
.footer-col a,.footer-col li{
  display:block;
  font-size:13.5px;
  color:var(--text-dim);
  margin-bottom:10px;
  line-height:1.7;
}
.footer-col a:hover{color:var(--primary-light);transform:translateX(2px);}
.footer-col a{transition:color .2s ease,transform .2s ease;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:22px;
  font-size:13px;
  color:rgba(143,169,175,.85);
}

/* ================= 回到顶部 ================= */
.to-top{
  position:fixed;
  right:24px;bottom:28px;
  width:48px;height:48px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  color:var(--primary-light);
  background:rgba(13,34,43,.86);
  border:1px solid var(--glass-border);
  backdrop-filter:blur(12px);
  box-shadow:var(--shadow);
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease,color .2s ease;
  z-index:70;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{color:#04211D;background:var(--primary);border-color:var(--primary);}

/* ================= 移动端抽屉 ================= */
.drawer{
  position:fixed;
  top:0;right:0;
  width:320px;
  max-width:86vw;
  height:100%;
  background:var(--bg-soft);
  border-left:1px solid var(--glass-border);
  box-shadow:var(--shadow-lift);
  transform:translateX(100%);
  transition:transform .3s ease;
  z-index:90;
  display:flex;
  flex-direction:column;
  padding:24px 22px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:18px;
  border-bottom:1px solid var(--line);
  margin-bottom:20px;
  font-size:16px;
  font-weight:700;
}
.drawer-close{
  width:36px;height:36px;
  border-radius:10px;
  color:var(--text-dim);
  border:1px solid var(--line);
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.drawer-close:hover{color:var(--primary-light);border-color:rgba(23,191,168,.5);}
.drawer-nav{display:grid;gap:10px;flex:1;}
.drawer-nav a{
  padding:14px 16px;
  border-radius:12px;
  font-size:15px;
  color:#D6E5E6;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
}
.drawer-nav a:hover{color:var(--primary-light);border-color:rgba(23,191,168,.5);background:rgba(23,191,168,.10);}
.drawer-cta{margin-top:20px;}
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.6);
  opacity:0;
  visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease;
  z-index:85;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--text);
  transition:transform .25s ease,opacity .25s ease,background-color .25s ease;
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);background:var(--primary-light);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);background:var(--primary-light);}

/* ================= 响应式 ================= */
@media (max-width:1080px){
  .article-layout{grid-template-columns:1fr;gap:36px;}
  .article-side{position:static;grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .nav-actions .btn-primary{display:none;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .page-hero{padding:48px 0 40px;}
  .article-shell{padding:28px 24px 26px;}
}
@media (max-width:767px){
  .related-grid{grid-template-columns:1fr;}
  .pager{grid-template-columns:1fr;}
  .pager .next{text-align:left;}
  .topbar-right .topbar-link:last-child{display:none;}
  .article-side{grid-template-columns:1fr;}
  .faq-wrap .accordion-title{padding:18px 48px 18px 18px;}
  .faq-wrap .accordion-title::before{right:18px;}
  .faq-wrap .accordion-content{padding:0 18px;}
  .cta-band{padding:36px 0;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .section-head h2{font-size:22px;}
}
@media (max-width:519px){
  body{font-size:15px;}
  .container{padding:0 16px;}
  .topbar-note{display:none;}
  .topbar-divider{display:none;}
  .article-title{font-size:23px;}
  .article-shell{padding:22px 18px 22px;}
  .key-points{padding:18px 16px;}
  .article-body h2{font-size:20px;}
  .article-body h3{font-size:17px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .brand{font-size:16px;}
  .brand-mark{width:34px;height:34px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --bg:#08161C;
  --bg-soft:#0D222B;
  --bg-deep:#061117;
  --glass:rgba(255,255,255,.06);
  --glass-strong:rgba(255,255,255,.09);
  --glass-border:rgba(255,255,255,.12);
  --primary:#17BFA8;
  --primary-dark:#0E8C7C;
  --primary-light:#5FE3D0;
  --accent:#F2A93B;
  --text:#E8F2F2;
  --muted:#8FA9AF;
  --line:rgba(255,255,255,.10);
  --radius-card:16px;
  --radius-btn:12px;
  --radius-pill:999px;
  --radius-input:10px;
  --shadow:0 8px 28px rgba(0,0,0,.38);
  --shadow-hover:0 16px 38px rgba(0,0,0,.48);
  --inset-top:inset 0 1px 0 rgba(255,255,255,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}

/* ============ 基础 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.3;color:var(--text);}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
a{color:var(--primary-light);text-decoration:none;transition:color .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);}
a:hover{color:var(--primary-light);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
img{max-width:100%;height:auto;display:block;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}

/* ============ 顶部信息条 ============ */
.top-bar{background:var(--bg-deep);border-bottom:1px solid var(--line);position:relative;z-index:60;}
.top-bar__inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:38px;font-size:13px;color:var(--muted);}
.top-bar__left{display:flex;align-items:center;gap:12px;min-width:0;}
.top-bar__domain{color:var(--primary-light);font-weight:600;letter-spacing:.04em;white-space:nowrap;}
.top-bar__sep{width:1px;height:12px;background:var(--line);flex:none;}
.top-bar__tip{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.top-bar__right{display:flex;align-items:center;gap:18px;flex:none;}
.top-bar__link{color:var(--muted);font-size:13px;display:inline-flex;align-items:center;gap:6px;}
.top-bar__link:hover{color:var(--primary-light);}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(8,22,28,.78);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header.is-scrolled{background:rgba(8,22,28,.92);box-shadow:0 12px 32px rgba(0,0,0,.38);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:11px;color:var(--text);flex:none;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;flex:none;
  background:linear-gradient(135deg,var(--primary-light),var(--primary-dark));
  color:#04211f;font-size:17px;
  box-shadow:0 6px 18px rgba(23,191,168,.35),var(--inset-top);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:.01em;}
.brand-text small{font-size:11px;color:var(--muted);font-weight:400;letter-spacing:.08em;margin-top:3px;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link{position:relative;padding:10px 14px;font-size:15px;color:var(--muted);border-radius:10px;white-space:nowrap;}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.is-active{color:var(--text);font-weight:600;}
.nav-link.is-active::after{
  content:'';position:absolute;left:14px;right:14px;bottom:-2px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px rgba(23,191,168,.9);
}
.header-cta{display:flex;align-items:center;gap:12px;flex:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--glass-border);color:var(--text);cursor:pointer;
}
.nav-toggle:hover{border-color:rgba(23,191,168,.45);color:var(--primary-light);}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:70;
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:-320px;width:300px;max-width:86vw;height:100vh;z-index:80;
  background:var(--bg-soft);border-left:1px solid var(--glass-border);
  padding:26px 22px;display:flex;flex-direction:column;gap:8px;
  transition:right .32s var(--ease);overflow-y:auto;
}
.mobile-drawer.is-open{right:0;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.drawer-head span{font-size:15px;font-weight:600;}
.drawer-close{
  width:40px;height:40px;border-radius:10px;background:var(--glass);border:1px solid var(--glass-border);
  color:var(--text);display:grid;place-items:center;cursor:pointer;
}
.drawer-link{
  display:block;padding:14px 14px;border-radius:12px;font-size:15px;color:var(--text);
  border:1px solid transparent;
}
.drawer-link:hover{background:rgba(255,255,255,.05);border-color:var(--glass-border);}
.drawer-link.is-active{color:var(--primary-light);border-color:rgba(23,191,168,.4);background:rgba(23,191,168,.09);}
.drawer-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);display:grid;gap:10px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;padding:14px 24px;min-height:44px;
  border-radius:var(--radius-btn);border:1px solid transparent;cursor:pointer;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),background-color .24s var(--ease),border-color .24s var(--ease),color .24s var(--ease),filter .24s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#04211f;
  box-shadow:0 0 0 1px rgba(95,227,208,.35) inset,0 8px 24px rgba(23,191,168,.32);
}
.btn-primary:hover{color:#04211f;filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(95,227,208,.5) inset,0 14px 32px rgba(23,191,168,.45);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border-color:rgba(23,191,168,.45);color:var(--primary-light);}
.btn-ghost:hover{background:rgba(23,191,168,.10);border-color:var(--primary);color:var(--primary-light);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:10px 18px;font-size:14px;min-height:38px;border-radius:10px;}
.btn-block{width:100%;}

/* ============ 标签与徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 12px;
  border-radius:var(--radius-pill);font-size:12px;letter-spacing:.05em;
  border:1px solid rgba(23,191,168,.45);background:rgba(23,191,168,.10);color:var(--primary-light);
}
.badge-accent{border-color:rgba(242,169,59,.5);background:rgba(242,169,59,.13);color:var(--accent);}
.badge-muted{border-color:var(--glass-border);background:rgba(255,255,255,.05);color:var(--muted);}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-bottom:20px;flex-wrap:wrap;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary-light);}
.breadcrumb .current{color:var(--text);}

/* ============ 内页 Hero ============ */
.page-hero{position:relative;overflow:hidden;padding:66px 0 60px;border-bottom:1px solid var(--line);}
.page-hero__bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.55;transform:scale(1.03);
}
.page-hero__veil{
  position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(6,17,23,.95) 0%,rgba(8,22,28,.86) 48%,rgba(13,34,43,.74) 100%);
}
.page-hero__inner{position:relative;z-index:2;}
.page-hero__content{max-width:780px;}
.page-hero h1{font-size:clamp(28px,4vw,44px);margin:18px 0 16px;letter-spacing:-.01em;}
.page-hero__lead{font-size:18px;line-height:1.8;color:rgba(232,242,242,.82);max-width:640px;}
.hero-points{display:flex;flex-wrap:wrap;gap:14px 26px;margin-top:22px;}
.hero-point{display:inline-flex;align-items:center;gap:9px;font-size:14px;color:var(--muted);}
.hero-point i{color:var(--primary);font-size:14px;}
.page-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}

/* ============ 板块通用 ============ */
.section{padding:88px 0;}
.section--soft{background:var(--bg-soft);}
.section--deep{background:var(--bg-deep);}
.section-head{max-width:700px;margin-bottom:44px;}
.section-head h2{font-size:clamp(22px,2.6vw,32px);margin:14px 0 14px;}
.section-head p{color:var(--muted);font-size:16px;margin:0;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}

/* ============ 数据条 ============ */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  margin-top:36px;
}
.stat{padding:26px 22px;border-right:1px solid var(--line);}
.stat:last-child{border-right:0;}
.stat-num{font-size:30px;font-weight:700;color:var(--primary-light);font-variant-numeric:tabular-nums;line-height:1.2;}
.stat-num em{font-style:normal;font-size:15px;color:var(--muted);font-weight:500;margin-left:6px;}
.stat-label{font-size:13px;color:var(--muted);margin-top:6px;}

/* ============ 要点卡 ============ */
.point-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  background:var(--glass);border:1px solid var(--glass-border);border-radius:var(--radius-card);
  box-shadow:var(--shadow),var(--inset-top);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(23,191,168,.4);box-shadow:var(--shadow-hover),var(--inset-top);}
.point-item{padding:26px 24px;}
.point-index{font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--primary);}
.point-item h3{font-size:18px;margin:12px 0 10px;}
.point-item p{font-size:14px;color:var(--muted);margin:0;}

/* ============ 筛选区 ============ */
.channel-layout{align-items:flex-start;}
.filter-panel{
  padding:22px;position:sticky;top:104px;
}
.filter-panel__head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);}
.filter-panel__head h2{font-size:16px;}
.filter-reset{font-size:12px;color:var(--muted);}
.filter-reset:hover{color:var(--primary-light);}
.filter-group{padding-top:20px;}
.filter-group+.filter-group{border-top:1px solid var(--line);margin-top:20px;}
.filter-group h3{font-size:14px;letter-spacing:.05em;margin-bottom:12px;color:var(--text);}
.filter-option{display:flex;align-items:center;gap:11px;font-size:14px;color:var(--muted);padding:7px 0;cursor:pointer;}
.filter-option:hover{color:var(--text);}
.filter-option input{
  appearance:none;-webkit-appearance:none;width:18px;height:18px;flex:none;
  border:1px solid var(--glass-border);border-radius:5px;background:rgba(255,255,255,.04);
  position:relative;cursor:pointer;transition:background-color .2s var(--ease),border-color .2s var(--ease);
}
.filter-option input[type=radio]{border-radius:50%;}
.filter-option input:checked{background:var(--primary);border-color:var(--primary);}
.filter-option input:checked::after{
  content:'✓';position:absolute;inset:0;display:grid;place-items:center;
  font-size:11px;color:#04211f;font-weight:700;
}
.filter-option input[type=radio]:checked::after{content:'';width:8px;height:8px;margin:auto;border-radius:50%;background:#04211f;}
.filter-note{font-size:12px;color:var(--muted);line-height:1.7;margin-top:6px;}

/* ============ 通道网格 ============ */
.channel-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px;flex-wrap:wrap;}
.channel-head h2{font-size:22px;}
.channel-head .count{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}
.channel-grid .cell{margin-bottom:24px;}
.channel-card{display:flex;flex-direction:column;height:100%;overflow:hidden;}
.channel-card__media{position:relative;aspect-ratio:16/9;overflow:hidden;}
.channel-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease);}
.channel-card:hover .channel-card__media img{transform:scale(1.06);}
.channel-card__media::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,17,23,.10) 0%,rgba(6,17,23,.88) 100%);
}
.channel-card__badge{position:absolute;left:14px;top:14px;z-index:2;}
.channel-card__body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1;}
.channel-card__body h3{font-size:18px;}
.channel-card__body p{font-size:14px;color:var(--muted);margin:0;}
.channel-card__list{display:grid;gap:4px;}
.channel-card__list li{position:relative;padding-left:18px;font-size:13.5px;color:var(--muted);line-height:1.9;}
.channel-card__list li::before{
  content:'';position:absolute;left:0;top:.78em;width:6px;height:6px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 8px rgba(23,191,168,.85);
}
.channel-card__foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
}
.channel-meta{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;}

/* ============ 分页 ============ */
.pagination{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:16px;flex-wrap:wrap;}
.page-num{
  width:40px;height:40px;display:grid;place-items:center;border-radius:10px;
  border:1px solid var(--glass-border);background:rgba(255,255,255,.04);
  color:var(--muted);font-size:14px;font-variant-numeric:tabular-nums;
}
.page-num:hover{border-color:var(--primary);color:var(--primary-light);}
.page-num.is-current{background:var(--primary);border-color:var(--primary);color:#04211f;font-weight:700;}
.page-num.is-disabled{opacity:.45;pointer-events:none;}

/* ============ 流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.flow-step{
  position:relative;padding:26px 22px;border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--glass-border);
  box-shadow:var(--shadow),var(--inset-top);
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.flow-step:hover{transform:translateY(-4px);border-color:rgba(23,191,168,.4);}
.flow-step::after{
  content:'';position:absolute;right:-14px;top:50px;width:8px;height:8px;border-radius:50%;
  background:rgba(23,191,168,.35);
}
.flow-step:last-child::after{display:none;}
.flow-step b{display:block;font-size:13px;font-weight:700;letter-spacing:.18em;color:var(--primary);margin-bottom:12px;}
.flow-step h3{font-size:17px;margin-bottom:10px;}
.flow-step p{font-size:14px;color:var(--muted);margin:0;}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;}
.accordion{background:transparent;border:0;margin:0;}
.accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent;}
.accordion-item:first-child{border-top:1px solid var(--line);}
.accordion-title{
  position:relative;display:block;border:0;background:transparent;
  color:var(--text);font-size:17px;font-weight:600;line-height:1.6;
  padding:22px 48px 22px 0;
}
.accordion-title:hover,.accordion-title:focus{background:transparent;color:var(--primary-light);}
.accordion-title::before{
  content:'+';position:absolute;right:6px;top:50%;transform:translateY(-50%);
  color:var(--primary);font-size:22px;font-weight:400;line-height:1;
  transition:transform .28s var(--ease),color .28s var(--ease);
}
.accordion-item.is-active>.accordion-title{color:var(--primary-light);}
.accordion-item.is-active>.accordion-title::before{transform:translateY(-50%) rotate(45deg);color:var(--accent);}
.accordion-content{border:0;background:transparent;padding:0 48px 22px 0;color:var(--muted);font-size:15px;}
.accordion-content p{margin:0;}

/* ============ CTA 通栏 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;padding:44px;
  background:linear-gradient(120deg,rgba(242,169,59,.12) 0%,rgba(23,191,168,.16) 100%);
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow),var(--inset-top);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band__text{max-width:640px;}
.cta-band__text h2{font-size:clamp(20px,2.4vw,28px);margin-bottom:12px;}
.cta-band__text p{color:rgba(232,242,242,.8);font-size:15px;margin:0;}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-count{display:flex;align-items:center;gap:10px;margin-top:16px;font-size:13px;color:var(--muted);}
.cta-count .num{
  background:rgba(6,17,23,.65);border:1px solid var(--glass-border);border-radius:8px;
  padding:4px 10px;color:var(--accent);font-weight:700;font-variant-numeric:tabular-nums;
}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand p{color:var(--muted);font-size:14px;margin-top:18px;max-width:340px;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text);}
.footer-col a,.footer-col li{display:block;color:var(--muted);font-size:14px;padding:6px 0;line-height:1.7;}
.footer-col a:hover{color:var(--primary-light);transform:translateX(2px);}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--line);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}

/* ============ 回到顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:28px;width:48px;height:48px;border-radius:50%;z-index:60;
  display:grid;place-items:center;cursor:pointer;color:var(--primary-light);
  background:var(--glass);border:1px solid var(--glass-border);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s var(--ease),border-color .28s var(--ease);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{border-color:rgba(23,191,168,.5);}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-cta .btn-primary{display:none;}
  .header-inner{height:64px;}
  .section{padding:64px 0;}
  .point-list{grid-template-columns:repeat(2,1fr);}
  .point-list .point-item:last-child{grid-column:1 / -1;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .flow-step:nth-child(2)::after{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .filter-panel{position:static;margin-bottom:24px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .top-bar__domain,.top-bar__sep,.top-bar__right .top-bar__link:last-child{display:none;}
  .top-bar__inner{height:36px;font-size:12px;}
  .section{padding:52px 0;}
  .page-hero{padding:48px 0 44px;}
  .page-hero__lead{font-size:16px;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .stat{border-right:0;border-bottom:1px solid var(--line);padding:20px 16px;}
  .stat:nth-child(odd){border-right:1px solid var(--line);}
  .stat:nth-last-child(-n+2){border-bottom:0;}
  .point-list{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr;}
  .flow-step::after{display:none;}
  .cta-band{padding:30px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .accordion-title{font-size:16px;padding:18px 42px 18px 0;}
  .accordion-content{padding:0 0 20px;font-size:14.5px;}
  .to-top{right:16px;bottom:20px;}
}
@media (max-width:519px){
  .hero-points{gap:10px 18px;}
  .page-hero__actions .btn{width:100%;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{width:100%;}
  .stat-num{font-size:24px;}
}

/* roulang page: category2 */
:root{
  --bg:#08161C;
  --bg-soft:#0D222B;
  --bg-deep:#061117;
  --glass:rgba(255,255,255,.06);
  --glass-strong:rgba(255,255,255,.09);
  --line:rgba(255,255,255,.10);
  --line-2:rgba(255,255,255,.12);
  --primary:#17BFA8;
  --primary-dark:#0E8C7C;
  --primary-light:#5FE3D0;
  --amber:#F2A93B;
  --text:#E8F2F2;
  --text-2:#8FA9AF;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow:0 8px 28px rgba(0,0,0,.38);
  --shadow-lg:0 18px 46px rgba(0,0,0,.52);
  --container:1200px;
  --font:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family:var(--font);font-size:16px;line-height:1.8;
  font-weight:400;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary-light);text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease,opacity .2s ease;}
a:hover{color:#8FF0E1;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--text);letter-spacing:.01em;}
p{margin:0 0 18px;color:var(--text-2);}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.grid-x{margin-left:0;margin-right:0;}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--deep{background:var(--bg-deep);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{font-size:clamp(24px,2.6vw,32px);}
.section-head p{margin-top:14px;font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--primary-light);border:1px solid rgba(95,227,208,.34);
  background:rgba(23,191,168,.08);padding:5px 12px;border-radius:999px;margin-bottom:16px;
}
.eyebrow i{font-size:11px;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--bg-deep);border-bottom:1px solid var(--line);font-size:13px;}
.topbar .container{display:flex;align-items:center;justify-content:space-between;min-height:38px;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:12px;color:var(--text-2);}
.topbar-left .sep{width:1px;height:12px;background:var(--line-2);}
.topbar-left strong{color:var(--primary-light);font-weight:600;letter-spacing:.02em;}
.topbar-right{display:flex;align-items:center;gap:18px;color:var(--text-2);}
.topbar-right a{color:var(--text-2);}
.topbar-right a:hover{color:var(--primary-light);}
.topbar-right .tel{color:var(--text);font-weight:600;font-variant-numeric:tabular-nums;}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(8,22,28,.78);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{background:rgba(8,22,28,.94);box-shadow:0 10px 30px rgba(0,0,0,.45);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:70px;}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--text);font-weight:700;font-size:17px;letter-spacing:.02em;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 38px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--primary),var(--primary-dark));
  color:#04211D;font-size:16px;
  box-shadow:0 0 0 1px rgba(95,227,208,.35) inset,0 8px 20px rgba(23,191,168,.28);
}
.brand small{display:block;font-size:11px;font-weight:400;color:var(--text-2);letter-spacing:.12em;margin-top:2px;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 14px;border-radius:10px;font-size:15px;color:var(--text-2);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.is-active{color:var(--text);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary-light),var(--primary));
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;border-radius:var(--radius-btn);font-size:14px;font-weight:600;
  color:#04211D;background:linear-gradient(135deg,var(--primary-light),var(--primary));
  box-shadow:0 0 0 1px rgba(95,227,208,.35) inset,0 8px 24px rgba(23,191,168,.3);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.nav-cta:hover{color:#04211D;transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(95,227,208,.5) inset,0 12px 30px rgba(23,191,168,.42);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line-2);
  background:var(--glass);color:var(--text);font-size:17px;cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:rgba(95,227,208,.45);color:var(--primary-light);}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,84vw);z-index:90;
  background:var(--bg-soft);border-left:1px solid var(--line-2);
  transform:translateX(104%);transition:transform .28s cubic-bezier(.4,.1,.2,1);
  display:flex;flex-direction:column;padding:22px 20px 20px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-head span{font-size:13px;color:var(--text-2);letter-spacing:.14em;}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line-2);background:transparent;color:var(--text);cursor:pointer;}
.drawer-close:hover{border-color:rgba(95,227,208,.45);color:var(--primary-light);}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav a{
  padding:14px 14px;border-radius:12px;font-size:16px;color:var(--text);
  border:1px solid transparent;background:rgba(255,255,255,.03);
}
.drawer-nav a.is-active{color:var(--primary-light);border-color:rgba(95,227,208,.35);background:rgba(23,191,168,.10);}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:10px;}
.drawer-foot .tel{font-size:15px;color:var(--text);font-weight:600;font-variant-numeric:tabular-nums;}

/* ---------- 分类页 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:78px 0 70px;
  background-image:linear-gradient(100deg,rgba(6,17,23,.94) 0%,rgba(6,17,23,.82) 46%,rgba(8,22,28,.66) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;
}
.page-hero .container{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-2);margin-bottom:22px;}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--primary-light);}
.crumb i{font-size:10px;opacity:.6;}
.crumb .current{color:var(--primary-light);}
.page-hero h1{font-size:clamp(28px,4vw,44px);max-width:840px;}
.page-hero .lead{margin-top:20px;max-width:720px;font-size:17px;color:var(--text-2);}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.fact-pill{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text);
  padding:8px 14px;border-radius:999px;background:var(--glass);border:1px solid var(--line-2);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.fact-pill i{color:var(--primary-light);font-size:12px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  cursor:pointer;border:1px solid transparent;min-height:46px;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{
  color:#04211D;background:linear-gradient(135deg,var(--primary-light),var(--primary) 62%,var(--primary-dark));
  box-shadow:0 0 0 1px rgba(95,227,208,.35) inset,0 8px 24px rgba(23,191,168,.32);
}
.btn-primary:hover{color:#04211D;transform:translateY(-2px);filter:brightness(1.07);box-shadow:0 0 0 1px rgba(95,227,208,.55) inset,0 14px 32px rgba(23,191,168,.45);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  color:var(--primary-light);background:transparent;border-color:rgba(95,227,208,.42);
}
.btn-ghost:hover{color:var(--primary-light);background:rgba(23,191,168,.10);transform:translateY(-2px);}
.btn-sm{padding:10px 18px;font-size:14px;min-height:40px;border-radius:10px;}
.btn-block{width:100%;}

/* ---------- 标签栏 ---------- */
.tagbar-wrap{
  position:sticky;top:70px;z-index:40;background:rgba(8,22,28,.9);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.tagbar{display:flex;align-items:center;gap:10px;overflow-x:auto;padding:14px 0;scrollbar-width:none;}
.tagbar::-webkit-scrollbar{display:none;}
.tagbar a{
  flex:0 0 auto;padding:9px 16px;border-radius:999px;font-size:14px;color:var(--text-2);
  border:1px solid var(--line-2);background:rgba(255,255,255,.03);white-space:nowrap;
}
.tagbar a:hover{color:var(--text);border-color:rgba(95,227,208,.45);background:rgba(23,191,168,.08);}
.tagbar a.is-on{color:var(--primary-light);border-color:rgba(95,227,208,.5);background:rgba(23,191,168,.12);}
.tagbar .tag-note{margin-left:auto;font-size:13px;color:var(--text-2);white-space:nowrap;padding-left:16px;}

/* ---------- 交错图文列表 ---------- */
.alt-list{border-top:1px solid var(--line);}
.alt-item{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:56px 0;border-bottom:1px solid var(--line);
}
.alt-item.is-reverse .alt-media{order:2;}
.alt-item.is-reverse .alt-body{order:1;}
.alt-media{position:relative;}
.alt-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--radius-card);
  border:1px solid var(--line-2);box-shadow:var(--shadow);
}
.alt-media::before{
  content:"";position:absolute;inset:auto -10px -12px auto;width:62%;height:58%;
  border-radius:var(--radius-card);border:1px solid rgba(95,227,208,.22);
  background:linear-gradient(140deg,rgba(23,191,168,.16),transparent 70%);
  z-index:-1;
}
.alt-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;font-size:13px;font-weight:700;
  color:var(--primary-light);background:rgba(23,191,168,.10);
  border:1px solid rgba(95,227,208,.34);font-variant-numeric:tabular-nums;
}
.alt-body .top-row{display:flex;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap;}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 11px;
  font-size:12px;border-radius:999px;border:1px solid rgba(95,227,208,.4);
  color:var(--primary-light);background:rgba(23,191,168,.08);letter-spacing:.02em;
}
.badge--amber{border-color:rgba(242,169,59,.5);color:var(--amber);background:rgba(242,169,59,.10);}
.alt-body h2{font-size:clamp(20px,2.2vw,26px);margin-bottom:14px;}
.alt-body p{font-size:15px;}
.check-list{margin:20px 0 26px;display:flex;flex-direction:column;gap:11px;}
.check-list li{position:relative;padding-left:26px;font-size:14px;color:var(--text-2);line-height:1.7;}
.check-list li::before{
  content:"";position:absolute;left:0;top:8px;width:14px;height:14px;border-radius:5px;
  background:rgba(23,191,168,.16);border:1px solid rgba(95,227,208,.45);
}
.check-list li::after{
  content:"";position:absolute;left:5px;top:12px;width:5px;height:8px;
  border-right:2px solid var(--primary-light);border-bottom:2px solid var(--primary-light);transform:rotate(42deg);
}
.alt-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.text-link{font-size:14px;color:var(--text-2);}
.text-link:hover{color:var(--primary-light);}

/* ---------- 流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--glass);}
.step{padding:30px 26px;border-right:1px solid var(--line);position:relative;transition:background .25s ease;}
.step:last-child{border-right:0;}
.step:hover{background:rgba(23,191,168,.07);}
.step .num{
  font-size:13px;font-weight:700;color:var(--primary-light);letter-spacing:.12em;
  font-variant-numeric:tabular-nums;display:block;margin-bottom:14px;
}
.step h3{font-size:17px;margin-bottom:10px;}
.step p{font-size:14px;margin:0;}
.step::after{
  content:"";position:absolute;left:0;top:0;height:2px;width:0;background:linear-gradient(90deg,var(--primary),transparent);
  transition:width .35s ease;
}
.step:hover::after{width:100%;}

/* ---------- 数据条 ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.metric{padding:34px 22px;border-right:1px solid var(--line);text-align:center;}
.metric:last-child{border-right:0;}
.metric .value{
  font-size:clamp(26px,3vw,34px);font-weight:700;color:var(--primary-light);
  font-variant-numeric:tabular-nums;letter-spacing:.01em;
}
.metric .label{margin-top:8px;font-size:13px;color:var(--text-2);}

/* ---------- 侧列信息卡 ---------- */
.info-split{display:grid;grid-template-columns:1.35fr 1fr;gap:34px;align-items:start;}
.glass-card{
  background:var(--glass);border:1px solid var(--line-2);border-radius:var(--radius-card);
  padding:30px;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.10);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.glass-card:hover{border-color:rgba(95,227,208,.4);transform:translateY(-4px);box-shadow:var(--shadow-lg),inset 0 1px 0 rgba(255,255,255,.12);}
.glass-card h3{font-size:18px;margin-bottom:14px;}
.glass-card p{font-size:14.5px;}
.plain-list{display:flex;flex-direction:column;gap:14px;margin-top:18px;}
.plain-list li{display:flex;gap:12px;font-size:14px;color:var(--text-2);}
.plain-list li i{color:var(--primary-light);margin-top:6px;font-size:12px;}
.plain-list li strong{color:var(--text);font-weight:600;display:block;margin-bottom:2px;}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);max-width:920px;}
.faq details{border-bottom:1px solid var(--line);}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;font-size:16.5px;font-weight:600;color:var(--text);transition:color .2s ease;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--primary-light);}
.faq summary .icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:9px;border:1px solid var(--line-2);
  display:inline-flex;align-items:center;justify-content:center;color:var(--primary-light);font-size:12px;
  transition:transform .25s ease,border-color .25s ease,background .25s ease;
}
.faq details[open] summary{color:var(--primary-light);}
.faq details[open] summary .icon{transform:rotate(45deg);background:rgba(23,191,168,.14);border-color:rgba(95,227,208,.5);}
.faq .answer{padding:0 4px 24px;font-size:14.5px;color:var(--text-2);max-width:820px;}

/* ---------- CTA 横幅 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-card);
  padding:44px 42px;border:1px solid rgba(95,227,208,.28);
  background-image:linear-gradient(120deg,rgba(242,169,59,.14),rgba(23,191,168,.16) 55%,rgba(14,140,124,.18)),url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.35;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:40px 40px;
}
.cta-band .cta-copy{position:relative;z-index:2;max-width:640px;}
.cta-band h2{font-size:clamp(21px,2.3vw,27px);margin-bottom:10px;}
.cta-band p{font-size:14.5px;margin:0;color:#CDE3E3;}
.cta-band .cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 表单 ---------- */
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:start;}
.form-card{padding:34px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13.5px;color:var(--text-2);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;padding:13px 14px;border-radius:var(--radius-input);
  background:rgba(255,255,255,.04);border:1px solid var(--line-2);color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{min-height:112px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:#6E8890;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);background:rgba(23,191,168,.06);
  box-shadow:0 0 0 3px rgba(23,191,168,.16);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-2) 50%),linear-gradient(135deg,var(--text-2) 50%,transparent 50%);background-position:calc(100% - 20px) 20px,calc(100% - 14px) 20px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--text-2);margin:6px 0 22px;}
.consent input{width:17px;height:17px;margin-top:4px;accent-color:var(--primary);}
.form-hint{margin-top:14px;font-size:13px;color:var(--amber);display:none;}
.form-hint.is-on{display:block;}
.contact-info li{display:flex;gap:14px;padding:15px 0;border-bottom:1px dashed var(--line);font-size:14px;color:var(--text-2);}
.contact-info li:last-child{border-bottom:0;}
.contact-info i{color:var(--primary-light);width:18px;text-align:center;margin-top:6px;}
.contact-info strong{color:var(--text);font-weight:600;display:block;margin-bottom:3px;font-size:14.5px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:66px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:46px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:360px;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text);}
.footer-col a,.footer-col li{display:block;font-size:14px;color:var(--text-2);margin-bottom:10px;list-style:none;}
.footer-col a:hover{color:var(--primary-light);}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;display:flex;align-items:center;justify-content:space-between;
  gap:14px;flex-wrap:wrap;font-size:13px;color:var(--text-2);
}
.footer-bottom a{color:var(--text-2);}
.footer-bottom a:hover{color:var(--primary-light);}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:26px;width:48px;height:48px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass-strong);border:1px solid var(--line-2);color:var(--primary-light);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease,border-color .2s ease;z-index:70;
}
.to-top.is-on{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{border-color:rgba(95,227,208,.55);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .section{padding:64px 0;}
  .section--tight{padding:52px 0;}
  .nav-links{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .tagbar-wrap{top:70px;}
  .alt-item{gap:36px;padding:44px 0;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step:nth-child(2){border-right:0;}
  .step:nth-child(1),.step:nth-child(2){border-bottom:1px solid var(--line);}
  .info-split{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .metric:nth-child(2){border-right:0;}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line);}
}
@media screen and (max-width:720px){
  body{font-size:15.5px;}
  .container{padding:0 20px;}
  .topbar-right .hide-sm{display:none;}
  .topbar .container{min-height:42px;}
  .page-hero{padding:52px 0 48px;}
  .alt-item{grid-template-columns:1fr;gap:24px;padding:36px 0;}
  .alt-item.is-reverse .alt-media{order:0;}
  .alt-item.is-reverse .alt-body{order:0;}
  .alt-media::before{display:none;}
  .cta-band{padding:32px 24px;}
  .form-card{padding:26px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .metrics{grid-template-columns:1fr;}
  .metric{border-right:0;border-bottom:1px solid var(--line);}
  .metric:last-child{border-bottom:0;}
  .steps{grid-template-columns:1fr;}
  .step{border-right:0;border-bottom:1px solid var(--line);}
  .step:last-child{border-bottom:0;}
  .to-top{right:16px;bottom:18px;}
}
@media screen and (max-width:520px){
  .page-hero h1{font-size:27px;}
  .brand{font-size:15.5px;}
  .brand small{font-size:10px;}
  .btn{width:100%;}
  .cta-band .cta-actions{width:100%;}
  .alt-actions .btn{width:auto;}
}